212k views
3 votes
Could some one help me with these last two please

Could some one help me with these last two please-example-1
User Josh Siegl
by
5.4k points

1 Answer

3 votes

21.- Associative property

22.- Reflexive propertive

20.- x = -7 y = 4

x^3 - 3xy = (-7)^3 + 3(-7)(4)

= -343 - 84

= -427

User Carlos Rojas
by
5.4k points